The Old Vic Theatre has received 20 complaints of alleged inappropriate behaviour against disgraced actor Kevin Spacey, from when he served as artistic director from 2004 to 2015.

In a statement released Thursday, The Old Vic apologized for “not creating an environment or culture where people felt able to speak freely.” They said all the incidents occurred between 1995 and 2013. All of Spacey’s inappropriate behaviour was conducted against men, 16 of whom were former staff members at the Old Vic.

The investigation that led to the latest findings on Spacey was started by theatre staff on October 31, with the help of external law firm Lewis Silkin. After originally coming under fire for being silent on Spacey since allegations began to trickle out, Old Vic executive director Kate Varah said they didn’t want to “just rush out a statement” and that “we have not slept since this came out because we have been doing it in a robust, careful way.”

While explicit details about the allegations were not released, the Old Vic did say that there was “a range of inappropriate behaviour relating to Spacey.” None of the men who provided the testimonials claimed they were minors at the time, and none accused Spacey of rape. T

he statement also said that the reason for Spacey’s allegers not feeling comfortable in coming out with their claims was because of his A-list status and “cult of personality.”

The investigation came after allegations of sexual harassment, assault and misconduct have been brought up against Spacey in recent weeks, beginning with actor Anthony Rapp, who claimed that Spacey tried to seduce him when he was only 14.

Since then, an avalanche of claims against the actor have followed, including from filmmaker Tony Montana who said that Spacey publicly groped him in 2003, along with an unnamed male source who informed Vulture in an interview that Spacey tried to rape him when he was 14 and Spacey was 24. It was also alleged by crew members on House of Cards that Spacey was frequently inappropriate with recurring bouts of sexual harassment.

Spacey has since been dropped by House of Cards, and was replaced with Christopher Plummer in the soon-to-be released Ridley Scott film All the Money in the World.